Quiz: Remember the definition of mal de mer?
1560s, from Middle French friable and directly from Latin friabilis "easily crumbled or broken," from friare "rub away, crumble into small pieces," related to fricare "to rub" (see friction). Related: Friability.
friable fri·a·ble (frī'ə-bəl)
Readily crumbled; brittle.
Relating to a dry, brittle growth of bacteria.